The decrease in signal strength between light entering and leaving the fiber,expressed in dB/km. Attenuation can result from a number of factors and conditions, such as absorption, bend loss, cabling, dispersion, insertion loss, macrobending, microbending,Rayleigh scattering, or water peak.

The decrease in signal strength between light entering and leaving the fiber,expressed in dB/km. Attenuation can result from a number of factors and conditions, such as absorption, bend loss, cabling, dispersion, insertion loss, macrobending, microbending,Rayleigh scattering, or water peak.